The Concorde has long been retired, but future skies may be filled with aircraft that can go even faster, criss-crossing the world in a matter of hours. Hypersonic engines that are being developed for military and government applications, like defense, drones and missiles, could one day propel future planes much faster than conventional engines for less money. Host Danny Lewis looks at the technical and business obstacles, and finds out what it would take to make hypersonic air travel a reality. Tune into the podcast featuring PARI’s Mark Lewis.

Listen here: https://link.chtbl.com/WSJFutureOfEverything